Vacuum coating process on the environment What are the requirements?

                   

  Vacuum coating process on the environment What are the requirements? Vacuum coating process, the vacuum coating process the substrate (ie the substrate) surface cleaning treatment is very important. We should be careful before plating the substrate cleaning process before entering the coating chamber, to the workpiece to oil, decontamination and dewatering purposes. Then the vacuum coating technology for the environment ask for?

  We know that the surface of the substrate is generally contaminated dust from all parts in the processing, transportation and packaging are adhered, lubricants, oil, polishing paste, oil, perspiration and other objects; parts of the surface oxide film generated in moist air; parts surface absorption and gas adsorption. These contaminants can be employed basically to oil or chemical cleansing method to get rid of.

 After the cleaning process for vacuum coating process to clean the surface, in the atmosphere can not be stored in an enclosed container or storage cabinet cleaning to reduce dust contamination. Aluminum oxide with a storage container just a glass substrate, can minimize the adsorption of hydrocarbon vapors. Because these containers preferentially adsorbed hydrocarbons. For highly unstable, sensitive to water vapor surface, generally should be stored in a vacuum oven.

  Indoor dust clear coating, the device is relatively high cleanliness workshop, interior height to keep clean vacuum coating process the basic requirements of the environment. Air humidity areas, in addition to the substrate before plating, vacuum chamber components carefully cleaned, but also baking degassing. To prevent the oil into the vacuum chamber, note that oil diffusion pump oil back on the high diffusion pump heating power must take measures to block the oil.